Grate.



No. 807,303. PATENTED DEC. 12, 1905. B. J. MOUAT.

GRATB.

APPLIOATIOX FILED NOV.28.1904.

PATENT orrron.

" ARBARA JOANNA MOUAT, OF DUNEDIN, NEW ZEALAND.

' i GRATE.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed November 28, 190A. Serial No. 234,638. I

To aZZ whom it may concern.-

Be it known that I, BARBARA JOANNA MOUAT, postmistress of the South Dunedin post-ofiice, a subject of the King of Great Britain, and a resident of the city of Dunedin, in the British Colony of New Zealand, have invented certain new and useful Improvements in Grates, of which the following is a full description and specification.

This invention relates to certain new and useful improvements in grates for stoves, ranges, or the like, and has for its object to provide a grate of novel construction which will permit of a smaller body of fire being maintained than would ordinarily, be possible with the common grate now in use, thus preventing waste, and also to provide improved means for regulating the draft of air through the grate.

With these objects in view the invention consists in the novel construction and combination of parts hereinafter described, and particularly pointed out in the claims following the specification.

I have illustrated the invention in the accompanying drawings, in which Figure 1 is a plan view of a grate provided with my improvements. Fig. 2 is a section of the same on the line 2 2 of Fig. 1. Fig. 3 is a front elevation of the same. Fig. 4 is a plan view similar to Fig. 1, but showing a modified construction. Fig. 5 is a section taken on the line 5 5 of Fig. t, and Fig. 6 is a plan view of the damper employed in the construction illustrated in Fig. 4.

Referring now to the drawings, and particularly to the construction illustrated in Figs. 1 to 3, A indicates the fire-bars of any grate suitable for having my improvement applied thereto, and A is a box-like projection and mounted on said bars and preferably placed as shown, so that in case a small fire is desired the fuel to be burned may be placed only on the firebars A, located near the front of the grate. In case a larger fire be desired the fuel can be piled on top of the box A, as well as on the grate-bars A. A indicates conventionally the back wall of the fire-chamber of any suitable range, stove, furnace, or similar device in which fuel is burned. In the construction shown by Figs. 1 to 3 I employ a plain or imperforate damper B, which is mounted to slide in guides C, located on the under side of the grate, and this damper is capable of being drawn partly or entirely out, as needed for regulating the draft through the grate. Said damper may be drawn partly out to form a suitable warming or toasting support, if desired.

In Figs. 4., 5, and 6 I have shown amodified construction in which I employ a damper B, having transverse slots or openings B which are adapted to be brought into or out of alinement with corresponding openings B in the grate to regulate the draft through the grate, as will be understood. At the rear end of this grate I provide a valve B which closes an opening B in the damper and is mounted on a spindle B, which latter is rotatably mounted in the damper B. By turning the spindle B the damper B may be caused to occupy the open position, (shown by Fig. 5,) so that the opening B will allow of more draft than would be caused by the partial withdrawal of the damper B. The valve B may be dispensed with, however, in this construction, as in the construction shown by Figs. 1 to 3, and the opening afforded by drawing the damper B away from the wall A may be utilized for the necessary draft through the box-like projection. In Figs. 4 and 5 this box-like projection is indicated by A and, as shown by these figures, only its sides and front are provided with openings, while its top is imperforate. In Figs. 1 and 2 the box-like projection B is shown to be perforated in its sides, front, and top.

The shape and extent of the box-like projection may be varied without departing from the spirit of my invention. The box-like projection with the imperforate top (shown by Figs. 4 and 5) would be used in cases where it was not desirable to place fuel upon said projection. In other cases the construction shown by Figs. 1 and 2 would be employed.

In this invention any suitable sizes, materials, position of box on bars, or shapes of bars may be adopted.

While I have stated that the invention relates to improvements in grates for stoves, ranges, or the like, I wish it understood that said invention is applicable also to furnaces, fireplaces, and, in fact, to all devices for burning fuel where grate-bars are employed for supporting the fuel.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. In combination with a grate, a boxlike projection connected to and extending above the grate at the rear thereof, and a damper slidably supported beneath the grate and con trolling the draft of air through the grate proper and said projection.

2. In combination with a grate, a box-like projection connected to and extending above the grate at the rear thereof and having openings in its sides, and a damper slidably mounted beneath the grate and controlling the draft of air through the grate proper and said projection.

3. In combination with a grate, a box-like projection connected to and extending above the grate at the rear thereof, and a damper supported beneath the grate and having independent means for controlling the draft of air through the grate proper and through said projection.

BARBARA JOANNA MOUAT Witnesses:

HENTON MACAULAY DAVEY, ELIZABETH ANN DAVEY. 

